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Finding the Fourth Proportional to 69,455.75, 104,189.75 and 19,536.26

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Solution

The fourth proportional to 69,455.75, 104,189.75 and 19,536.26 is: 29,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.75 : 104,189.75 = 19,536.26 : x
  2. Step 2: Convert to fraction form
    69,455.75/104,189.75 = 19,536.26/x
  3. Step 3: Cross multiply
    69,455.75x = 104,189.75 × 19,536.26
  4. Step 4: Simplify right side
    69,455.75x = 2,035,477,426.70
  5. Step 5: Solve for x
    x = 2,035,477,426.70/69,455.75
  6. Step 6: Final answer
    x = 29,306.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.